Senior Network Voice Engineer – Hybrid, CUCM/SIP Expert

Hamilton Barnes; Gloucester; Hybrid; GBP 40,000 - 50,000; Full time

Benefits offered by this job

Additional on-call allowance

Continued technical progression

Job summary

Hamilton Barnes is seeking a Network Voice Engineer for one of Britain’s oldest rural police forces. You will own complex voice incidents, manage migrations, and drive improvements across CUCM, SIP/VoIP, and enterprise telephony platforms.

Hybrid working with 2–3 days per week in Gloucester; on-call 1-in-4; permanent position. Salary £40,000–£50,000, basic plus on-call allowance and ongoing technical progression.

Qualifications

• Strong enterprise voice engineering experience.
• Level 3 or Level 4 support capability.
• CUCM experience.
• Strong SIP and VoIP understanding.
• Experience troubleshooting complex voice faults.
• Understanding of dial plans and call routing.
• Experience supporting migrations or upgrades.
• Ability to take technical ownership of incidents.
• Good wider networking knowledge.
• Strong troubleshooting methodology.
• Comfortable working within a collaborative engineering team.
• Typically focus on practical experience over certifications.

Responsibilities

• Provide senior Level 3 / Level 4 voice engineering support
• Take ownership of complex voice incidents
• Support and administer enterprise telephony platforms
• Troubleshoot difficult call-routing and signalling issues
• Support upgrades, migrations and platform changes
• Provide technical escalation for other engineers
• Contribute to voice architecture and service improvements
• Work across voice and wider network dependencies
• Support resilience and service-continuity improvements
• Work with internal infrastructure teams and suppliers
• Maintain technical documentation and engineering standards
• Participate in the engineering on-call rota

Skills

Enterprise voice

Level 3/4 support

CUCM experience

SIP/VoIP

Troubleshooting voice faults

Dial plans & call routing

Migrations/upgrades experience

Incident ownership

Networking knowledge

Troubleshooting methodology

Team collaboration

Practical experience over certs

Job description

Hamilton Barnes is seeking a Network Voice Engineer for one of Britain’s oldest rural police forces. You will own complex voice incidents, manage migrations, and drive improvements across CUCM, SIP/VoIP, and enterprise telephony platforms.

Hybrid working with 2–3 days per week in Gloucester; on-call 1-in-4; permanent position. Salary £40,000–£50,000, basic plus on-call allowance and ongoing technical progression.